Improvement in sewing-machine



, G. A.-SM|TH & E. L. MILLER.

. Sewing Machine. No. 102,170. Patented April 19, 1870.

two staples, F F.

' dint-ted $21125.

igatrnt Gtfiliine.

GEQRGE A. SMITH AND EDWARD L. MILLER, OF PHILADELPHIA, PENN- SYLVANIA.

Letters Patent No. 102,170, dated April 19, 1870.

IMPROVEMENT IN SEWING--MACHINE.

The Schedule relerred to in these Letters Patent and making part of thename To all whom it may concern:

Be it known that we, GEORGE A. SMITH and En- YARD L MILLER, both of thecity of Philadelphia, in th'e State of Pennsylvania, have invented a newand useful Improvement inSewing-Machines; and we do hereby declare thefollowing to be a full, clear, and exact description thereof, which willenableothers skilled in the art to which it appertains to make and useour invention, reference being had to the accompanying drawing, whichforms a part of this specification, and which is a perspective view ofso much of a sewing machine as is necessary to show our improvement- Ourinvention consists in an improved means for taking up the threadimmediately after the stitch is formed. d

A represents the needlebar, pivoted to the head B of the needle-arm O.

D is the faceplate, provided with an eye, E, and

G is the take-up stand, to which are pivoted the take-up lever H andbent lever I, connected by the link K.

On the head Bis a pin, L, against which the bent lever I I is pressed bythe spring M. v

The arm I of the bent lever I I is made with a cam-face, as shown in thedrawing.

The operation is as follows:

The thread passing from the spool, thread-check, and tension device,through the eye E, staple F, eye of the take-up lever, staple F,needle-clamp, and eye, successively, when the needle-arm begins todescend from its highest position, the arm I of the bent lever remainsstationary, being pressed by the spring M against the pin L, whichslides against the straight. portion of the cam-face without moving thelever. The take-up lever, therefore, likewise remains stationary, andthe thread slips through the eye of the needle with the point of theneedle has entered the cloth and the needle-arm reaches the positionshown in the drawing, bringing the pin Lopposite the curved portion ofthe cam-face.

As the pin descends, the bent lever is pressed against it by the spring,and. the consequent movement of the arm 1 operates the link anddepresses the long arm of the take-up lever with a quick motion, so asto allow the thread slack enough for forming the stick.

hen the needle-arm rises, the take-up lever remains stationary untilimmediately after the stitch has been formed, when the pin is againbrought against the curved portion of the cam-face, so as to move thebent lever, and thereby raise the long arm of the take-up lever with aquick motion, so as to tighten the stitch in advance of the movement'ofthe needle-bar.

Having thus described the construction and operation of our improvement,

\Vhat we claim as new therein, and desire to secure by Letters Patent,is-- The combination of the take-up lever link, and bent lever,constructed with a cam-face and operated by the movement of theneedle-arm, as described.

- G. A. SMITH. I E. L. MILLER.

Witnesses:

WM. J. Bonus, GEORGE E. BUCKLEY.

